CVE-2023-38703

Name	CVE-2023-38703
Description	PJSIP is a free and open source multimedia communication library written in C with high level API in C, C++, Java, C#, and Python languages. SRTP is a higher level media transport which is stacked upon a lower level media transport such as UDP and ICE. Currently a higher level transport is not synchronized with its lower level transport that may introduce use-after-free issue. This vulnerability affects applications that have SRTP capability (`PJMEDIA_HAS_SRTP` is set) and use underlying media transport other than UDP. This vulnerability’s impact may range from unexpected application termination to control flow hijack/memory corruption. The patch is available as a commit in the master branch.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3696-1, DSA-5596-1
Debian Bugs	1059303, 1059307

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
asterisk (PTS)	bullseye (security), bullseye	1:16.28.0~dfsg-0+deb11u4	fixed
	sid	1:20.8.1~dfsg+~cs6.14.40431414-1	fixed
ring (PTS)	bullseye	20210112.2.b757bac~ds1-1	vulnerable
	bookworm	20230206.0~ds2-1.1	vulnerable
	sid, trixie	20231201.0~ds1-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
asterisk	source	buster	1:16.28.0~dfsg-0+deb10u4		DLA-3696-1
asterisk	source	bullseye	1:16.28.0~dfsg-0+deb11u4		DSA-5596-1
asterisk	source	(unstable)	1:20.8.1~dfsg+~cs6.14.40431414-1			1059303
pjproject	source	(unstable)	(unfixed)
ring	source	(unstable)	(unfixed)	unimportant		1059307

Notes

https://github.com/pjsip/pjproject/security/advisories/GHSA-f76w-fh7c-pc66
https://github.com/pjsip/pjproject/commit/6dc9b8c181aff39845f02b4626e0812820d4ef0d (2.14)
According to https://bugs.debian.org/1059307#12 Jami's use of pjsip is not affected
by this issue.